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  <title>Creates a new QuickHashIntSet object</title>

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</div><hr /><div id="quickhashintset.construct" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">QuickHashIntSet::__construct</h1>
  <p class="verinfo">(PECL quickhash &gt;= Unknown)</p><p class="refpurpose"><span class="refname">QuickHashIntSet::__construct</span> &mdash; <span class="dc-title">Creates a new QuickHashIntSet object</span></p>

 </div>

 <div class="refsect1 description" id="refsect1-quickhashintset.construct-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="modifier">public</span> <span class="methodname"><strong>QuickHashIntSet::__construct</strong></span>
    ( <span class="methodparam"><span class="type">int</span> <code class="parameter">$size</code></span>
   [, <span class="methodparam"><span class="type">int</span> <code class="parameter">$options</code></span>
  ] )</div>

  <p class="para rdfs-comment">
   This constructor creates a new QuickHashIntSet. The size is the amount of
   bucket lists to create. The more lists there are, the less collisions you
   will have. Options are also supported.
  </p>
 </div>


 <div class="refsect1 parameters" id="refsect1-quickhashintset.construct-parameters">
  <h3 class="title">参数</h3>
  <p class="para">
   <dl>

    
     <dt>
<em><code class="parameter">size</code></em></dt>

     <dd>

      <p class="para">
       The amount of bucket lists to configure. The number you pass in will be
       automatically rounded up to the next power of two. It is also
       automatically limited from 4 to 4194304.
      </p>
     </dd>

    
    
     <dt>
<em><code class="parameter">options</code></em></dt>

     <dd>

      <p class="para">
       The options that you can pass in are: QuickHashIntSet::CHECK_FOR_DUPES,
       which makes sure no duplicate entries are added to the set;
       QuickHashIntSet::DO_NOT_USE_ZEND_ALLOC to not use PHP&#039;s internal memory
       manager as well as one of QuickHashIntSet::HASHER_NO_HASH,
       QuickHashIntSet::HASHER_JENKINS1 or QuickHashIntSet::HASHER_JENKINS2.
       These last three configure which hashing algorithm to use. All options
       can be combined using bitmasks.
      </p>
     </dd>

    
   </dl>

  </p>
 </div>


 <div class="refsect1 returnvalues" id="refsect1-quickhashintset.construct-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   Returns a new QuickHashIntSet object.
  </p>
 </div>


 <div class="refsect1 examples" id="refsect1-quickhashintset.construct-examples">
  <h3 class="title">范例</h3>
  <p class="para">
   <div class="example" id="example-5033">
    <p><strong>Example #1 <span class="function"><strong>QuickHashIntSet::__construct()</strong></span> example</strong></p>
    <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br />var_dump</span><span style="color: #007700">(&nbsp;new&nbsp;</span><span style="color: #0000BB">QuickHashIntSet</span><span style="color: #007700">(&nbsp;</span><span style="color: #0000BB">1024&nbsp;</span><span style="color: #007700">)&nbsp;);<br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(&nbsp;new&nbsp;</span><span style="color: #0000BB">QuickHashIntSet</span><span style="color: #007700">(&nbsp;</span><span style="color: #0000BB">1024</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">QuickHashIntSet</span><span style="color: #007700">::</span><span style="color: #0000BB">CHECK_FOR_DUPES&nbsp;</span><span style="color: #007700">)&nbsp;);<br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(<br />&nbsp;&nbsp;&nbsp;&nbsp;new&nbsp;</span><span style="color: #0000BB">QuickHashIntSet</span><span style="color: #007700">(<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">1024</span><span style="color: #007700">,<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">QuickHashIntSet</span><span style="color: #007700">::</span><span style="color: #0000BB">DO_NOT_USE_ZEND_ALLOC&nbsp;</span><span style="color: #007700">|&nbsp;</span><span style="color: #0000BB">QuickHashIntSet</span><span style="color: #007700">::</span><span style="color: #0000BB">HASHER_JENKINS2&nbsp;<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #007700">)<br />);<br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</code></div>
    </div>

   </div>
  </p>
 </div>



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